| Signal Hill to McHenry (Illinois) | 1,717.99 mi (2,764.84 km) |
| Signal Hill to McKeesport (Pennsylvania) | 2,143.04 mi (3,448.89 km) |
| Signal Hill to McKinleyville (California) | 590.70 mi (950.64 km) |
| Signal Hill to McKinney (Texas) | 1,237.22 mi (1,991.12 km) |
| Signal Hill to McLean (Virginia) | 2,287.53 mi (3,681.43 km) |
| Signal Hill to McMinnville (Oregon) | 832.02 mi (1,339.01 km) |
| Signal Hill to McMinnville (Tennessee) | 1,835.03 mi (2,953.20 km) |
| Signal Hill to McNair (Virginia) | 2,275.85 mi (3,662.63 km) |
| Signal Hill to McPherson (Kansas) | 1,184.95 mi (1,906.99 km) |
| Signal Hill to Mead Valley (California) | 50.72 mi (81.63 km) |
| Signal Hill to Meadow Woods (Florida) | 2,199.01 mi (3,538.97 km) |
| Signal Hill to Meadowbrook (Virginia) | 2,281.72 mi (3,672.08 km) |
| Signal Hill to Meadville (Pennsylvania) | 2,128.77 mi (3,425.93 km) |
| Signal Hill to Mebane (North Carolina) | 2,193.87 mi (3,530.70 km) |
| Signal Hill to Mechanicsville (Virginia) | 2,286.71 mi (3,680.11 km) |
